Trench shield stacking bracket



FIG. 1 is a front perspective view of trench shield stacking bracket showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side view thereof, the left side being a mirror image thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof. 

I claim the ornamental design for trench shield stacking bracket, as shown. 